David A. Humphreys

Orcid: 0000-0001-7720-6742

According to our database1, David A. Humphreys authored at least 40 papers between 1993 and 2023.

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Bibliography

2023
A Reference Governor for Plasma-Shape Control in Tokamaks.
Proceedings of the IEEE Conference on Control Technology and Applications, 2023

Implementation and Initial Testing of a Model Predictive Controller for Safety Factor Profile and Energy Regulation in the EAST Tokamak<sup>*</sup>.
Proceedings of the American Control Conference, 2023

2022
Concepts and challenges in the design of a tokamak plasma control system. ITER PCS for First Plasma and beyond.
Proceedings of the IEEE Conference on Control Technology and Applications, 2022

2021
Optimal Shaping of the Safety Factor Profile in the EAST Tokamak.
Proceedings of the IEEE Conference on Control Technology and Applications, 2021

2020
Estimation and exploratory regulation of confinement-time based plasma performance in the DIII-D tokamak experiment.
Proceedings of the 2020 IEEE Conference on Control Technology and Applications, 2020

2017
Metrology State-of-the-Art and Challenges in Broadband Phase-Sensitive Terahertz Measurements.
Proc. IEEE, 2017

Current profile and energy control in DIII-D plasmas using discrete-time variable-structure control.
Proceedings of the 25th Mediterranean Conference on Control and Automation, 2017

2016
Predictive control of the tokamak q profile to facilitate reproducibility of high-qmin steady-state scenarios at DIII-D.
Proceedings of the 2016 IEEE Conference on Control Applications, 2016

2015
Principal Component Compression Method for Covariance Matrices Used for Uncertainty Propagation.
IEEE Trans. Instrum. Meas., 2015

Calibration of Wideband Digital Real-Time Oscilloscopes.
IEEE Trans. Instrum. Meas., 2015

Current profile control for the development of consistent discharges in DIII-D.
Proceedings of the 54th IEEE Conference on Decision and Control, 2015

2014
Backstepping Control of the Toroidal Plasma Current Profile in the DIII-D Tokamak.
IEEE Trans. Control. Syst. Technol., 2014

2013
Traceable Measurement of Source and Receiver EVM Using a Real-Time Oscilloscope.
IEEE Trans. Instrum. Meas., 2013

Physics-based control-oriented modeling of the safety factor profile dynamics in high performance tokamak plasmas.
Proceedings of the 52nd IEEE Conference on Decision and Control, 2013

Identification and control of magneto-kinetic response during advanced tokamak scenarios in DIII-D.
Proceedings of the American Control Conference, 2013

PTRANSP simulation and experimental test of a robust current profile and βN controller for off-axis current drive scenarios in the DIII-D tokamak.
Proceedings of the American Control Conference, 2013

2012
A two-time-scale model-based combined magnetic and kinetic control system for advanced tokamak scenarios on DIII-D.
Proceedings of the 51th IEEE Conference on Decision and Control, 2012

Current profile tracking for the DIII-D tokamak via LQI optimal control.
Proceedings of the 51th IEEE Conference on Decision and Control, 2012

Optimal feedback control of the poloidal magnetic flux profile in the DIII-D tokamak based on identified plasma response models.
Proceedings of the American Control Conference, 2012

Multivariable robust control of the plasma rotational transform profile for advanced tokamak scenarios in DIII-D.
Proceedings of the American Control Conference, 2012

Backstepping control of the plasma current profile in the DIII-D tokamak.
Proceedings of the American Control Conference, 2012

First-principles model-based robust control of the current profile evolution in the DIII-D tokamak.
Proceedings of the American Control Conference, 2012

2011
Optimal Tracking Control of Current Profile in Tokamaks.
IEEE Trans. Control. Syst. Technol., 2011

Data-driven modeling and feedback tracking control of the toroidal rotation profile for advanced tokamak scenarios in DIII-D.
Proceedings of the IEEE International Conference on Control Applications, 2011

2009
On feedback stabilization of the tokamak plasma vertical instability.
Autom., 2009

Optimal tuning of tokamak plasma equilibrium controllers in the presence of time delays.
Proceedings of the IEEE International Conference on Control Applications, 2009

2008
Extending the RWM stability region by optimal feedback control.
Proceedings of the 47th IEEE Conference on Decision and Control, 2008

Closed-loop tracking control of poloidal magnetic flux profile in tokamaks.
Proceedings of the American Control Conference, 2008

POD-based optimal control of current profile in tokamak plasmas via nonlinear programming.
Proceedings of the American Control Conference, 2008

2006
Model-based Static and Dynamic Filter Application to Resistive Wall Mode Identification and Feedback Control in DIII-D.
Proceedings of the 45th IEEE Conference on Decision and Control, 2006

A Multivariable Analysis of the Plasma Vertical Instability in Tokamaks.
Proceedings of the 43rd IEEE Conference on Decision and Control, 2006

2005
Traceable RF peak power measurements for mobile communications.
IEEE Trans. Instrum. Meas., 2005

Vector calibration of optical reference receivers using a frequency-domain method.
IEEE Trans. Instrum. Meas., 2005

Realization of a quantum standard for AC voltage: overview of a European research project.
IEEE Trans. Instrum. Meas., 2005

Plasma vertical stabilization with actuation constraints in the DIII-D tokamak.
Autom., 2005

2004
Toward the implementation of an anti-windup scheme for vertical and shape control in the DIII-D Tokamak.
Proceedings of the 2004 American Control Conference, 2004

2003
Antiwindup scheme for plasma shape control with rate and magnitude actuation constraints in the DIII-D tokamak.
Proceedings of the 42nd IEEE Conference on Decision and Control, 2003

Some nonlinear controls for nonlinear processes in the DIII-D tokamak.
Proceedings of the 42nd IEEE Conference on Decision and Control, 2003

Plasma vertical stabilization in the presence of coil voltage saturation in the DIII-D tokamak.
Proceedings of the American Control Conference, 2003

1993
An algorithm for the removal of noise and jitter in signals and its application to picosecond electrical measurement.
Numer. Algorithms, 1993


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